Vladyslav Koltsovis is a security consultant at K2 Integrity/Leviathan Security Group, specializing in penetration testing across web, API, mobile, cloud-based, and network environments, including Amazon Web Services deployment reviews focused on IAM, EC2, S3, and other major AWS services. He conducts both black-box and white-box application assessments and supports clients in evaluating the security of external and internal systems in commercial settings.
Before joining K2 Integrity/Leviathan Security Group, Vladyslav worked as a penetration tester focused on web, API, and mobile systems in commercial environments, building experience across a range of application security engagements.
Vladyslav also has experience developing Bash and Python automation scripts to support security outcomes and is also able to provide source code reviews for Node.js, PHP, Python, Java, Ruby, and Swift. He has participated in capture-the-flag exercises that further strengthen his technical problem-solving skills.